Ventricular fibrillation a rare complication during head-up tilt test
نویسندگان
چکیده
the supine position for 10 minutes. The test consisted of 2 Introduction The head-up tilt test (HUTT) is a useful diagnostic tool for evaluating suspected neurocardiogenic syncope. Pharmacologic provocation with isoproterenol, adenosine, or nitroglycerin (NTG) is frequently used to facilitate the induction of syncope during HUTT. Studies have reported the occurrence of ventricular arrhythmias during HUTT, especially with high-dose isoprenaline infusion in patients with structural heart disease.
منابع مشابه
Frequency domain assessment of the coupling strength between ventricular repolarization duration and heart period during graded head-up tilt
We test the hypothesis that the degree of correlation between ventricular repolarization duration (VRD) and heart period (HP) carries information on cardiac autonomic regulation. The degree of correlation was assessed in the frequency domain using squared coherence function during an experimental protocol known to gradually induce a shift of sympathovagal balance toward sympathetic predominance...
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